const name = 'king'
const age = 18
const books = {
  name: '平凡的世界',
}
const userName = 'admin'
const passWorld = '密码是我生日'
const DEFAULT = 'default'
export { name, age, books } // 普通导出
// export default DEFAULT // 默认导出
export default {
  a: 1,
  b: 2,
} // 默认导出多个成员
export { userName as name, passWorld as pass } // as重命名导出
